Ext.define('Ext.ux.MultiComboBox', {
			extend : 'Ext.form.ComboBox',
			alias : 'widget.multicombobox',
			xtype : 'Ext.ux.MultiComboBox',
			initComponent : function() {
				this.multiSelect = true;
				this.listConfig = {
					itemTpl : Ext.create('Ext.XTemplate',
							'<input type=checkbox>{value}'),
					onItemSelect : function(record) {
						var node = this.getNode(record);
						if (node) {
							Ext.fly(node).addCls(this.selectedItemCls);

							var checkboxs = node.getElementsByTagName("input");
							if (checkboxs != null) {
								var checkbox = checkboxs[0];
								checkbox.checked = true;
							}
						}
					},
					listeners : {
						itemclick : function(view, record, item, index, e,
								eOpts) {
							var isSelected = view.isSelected(item);
							var checkboxs = item.getElementsByTagName("input");
							if (checkboxs != null) {
								var checkbox = checkboxs[0];
								if (!isSelected) {
									checkbox.checked = true;
								} else {
									checkbox.checked = false;
								}
							}
						}
					}
				};
				this.callParent();
			}
		});